Air Dispersion Model: A Tool for Informed Decision-making

5 November, 2014 | Blog

Hugues Châteauneuf

Hugues Châteauneuf, P.Eng.

SME – Industrial Ventilation | Hazardous Locations | Explosion Hazard Management

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Under ever stricter environmental regulations, industry is subject to a twofold obligation: first, to comply with contaminant emissions standards and, second, to stay within air quality standards set by government authorities. Increasingly, regulatory authorities are focusing on environmental monitoring or, in other words, comprehensive management of air emissions through observation, measurement and calculation. 

When an industrial facility has several emission points like chimneys, exhaustors, roads and outside stockpiles, it is good practice to prepare a comprehensive air dispersion model. Once in place, this model is easy to use and can be modified as necessary.

It is an effective tool for managing environmental emissions and can be used to:

  • Rapidly confirm, at any time, the state of air dispersion for contaminants from all emission points
  • Identify problematic sources and the impact of each when limits are exceeded
  • Anticipate the effect of changes on an emission point (processes, scrubbers, chimneys) from the early stages of a project
  • Prevent contamination at the site (administrative buildings, control rooms and critical sectors) and beyond the boundaries of plant property – neighbours and target receptors (e.g., sensitive sites)
  • Settle or prevent complaints from neighbours
  • Meet regulatory requirements

Developing and using a comprehensive dispersion model covering all emission points creates synergy among engineering disciplines. It also incorporates the environmental aspect from the outset for projects involving existing or new emission sources. Plant managers are thus better prepared to make informed decisions without the risk of technological errors, which can be costly.

Contact our experts to find out more. You can also read our blog article ‘Everything You Need to Know About Atmospheric Modelling‘ to learn more.

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